ANSWER: You surely already knew this George right ?? However for anyone who may not:
One reason many old tractor and car makers for years on 12 volt cars/tractors used a 6 volt coil PLUS an external series ballast resistor PLUS a ballast by pass when cranking function
WAS TO IMPROVE COLD WEATHER STARTING
How it works is ONLY when cranking, if so equipped, a ballast by pass system applied non ballasted battery voltage to the 6 volt coil for a stronger spark VERSUS if the reduced battery voltage were applied to a 12 volt coil. In cold weather battery voltage drops significantly when cranking so say 10 11 or so remaining volts (when cranking) on a 6 volt coil can allow an engine to start versus the same voltage was applied to a 12 volt coil GOT IT ????????????
SOOOOOOOOOO thats why so many companies used a 6 volt coil plus a ballast and ballast by pass while cranking system on 12 volt tractors for years TO IMPROVE COLD WEATHER STARTING
HOWEVER NOOOOOOOOOOO George you dont need it,,,,,,,I wouldnt mess with it,,,,,,,,its simpler to just use a 12 volt coil no ballast required,,,,,,,,,,,,you likely would never notice any difference,,,,,,,,,,,of course it can only improve cold weather starting iffffffffff you have a ballast by pass feature WELL DUH,,,,,,,,,,,,,,YESSSSSSSSSSSSS ITS SIMPLER But this is ONLY to explain why and how manufacturers did that for years and indeed it could help in cold weather
You dont need it, I wouldnt mess with it either, just use a 12 volt coil no ballast required KISS
There ya go George hope this helps, answers your question, and lets you know why it was done for years even if its NOT for you and indeed simpler to use a 12 volt coil and be done with it lol. Hey if the engine is good with a good full charged battery theres likely little to no difference !!!!
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
